It has to be. There's flashbacks to the events of "The River" in the Lawson/Laird/Eastman "Sons of the Silent Age."

I mentioned the exact same thing in another thread. I love The River. Reread it again a few days ago, it still makes me want to cry when April says "No baby, not this time." Laird would have to elimate an entire page of Lawson's artwork to get rid of the SofSA reference.

As for Leo's "I saw you die 3 years ago," doesn't it say in issue 1 that the TMNT are only 13 when they first "kill" Shredder.

Yes, sticky this thread!

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AKA the Edwardian Adventuress and Fairlady_Z

"You just made your last mistake, Bugeyes -- 'cuz nobody beats up my best buddy and gets away with it -- Nobody!Got that?!"
Raphael about Michaelangelo, TMNT Volume 1